1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara [203]
2 years ago
12

Adam and Brianna plan to install a new tile floor in a classroom. Adam works at a constant rate of 50 tiles per hour, and Briann

a works at a constant rate of 55 tiles per hour. If the new floor consists of exactly 1400 tiles, how long will it take Adam and Brianna working together to complete the classroom floor?
Mathematics
1 answer:
natima [27]2 years ago
7 0

Answer:

t≅13.33h

Step-by-step explanation:

Adam (A) works at constant rate of 50tiles/h

Briana (B) works at constant rate of 55tiles/h, this means that A=50 tiles per hour and B=55 tiles per hour, then A+B = 105tiles/h together, but the floor consists of 1400tiles, so if 105 tiles are installed in one hour, then 1400 tiles in how long they will be installed?

t = 1400tiles*h/105tiles≅ 13.33 h

You might be interested in
HELP
Bumek [7]

Answer:B.x = 2

because 1 < x < 13 => x ≠ {0;14}

Step-by-step explanation:

7 0
3 years ago
Simplify please I need help don't get it
trasher [3.6K]
Hope this helps. If you have any further question ask me in comment.

4 0
3 years ago
Solve x squared = 10
balu736 [363]

Answer:

=3.162

Step-by-step explanation:

x2  

= −0 + √ 02 − 4×1×(−10)  

2×1

= 0 + 2 × √ 10  

2

= 3.162

5 0
3 years ago
Punctele O, A, B, C sunt coliniare în această ordine, iar segmentele OA, AB și BC au lungimile exprimate în cm, prin numere natu
julia-pushkina [17]

Răspuns:

a) OC = 18cm

b) MN = 6cm

Explicație pas cu pas:

Găsiți diagrama la întrebarea atașată.

a) Din diagramă se poate observa că OC = OA + AB + AC

OC = 2n + 2n + 2 + 2n + 4

OC = 6n + 6

Următorul este să obțineți valoarea lui n:

OM = OA + AM

Să obținem segmentul AM;

Deoarece M este segmentul mijlociu al AC, atunci;

AM = AC / 2

AM = AB + BC / 2

AM = 2n + 2 + 2n + 4/2

AM = 4n + 6/2

AM = 2n + 3

Din moment ce OM = OA + AM

OM = 2n + 2n + 3

OM = 4n + 3

Dat fiind OM = 11

11 = 4n + 3

4n = 11-3

4n = 8

n = 2

Următorul pas este să calculați OC;

OC = 6n + 6

OC = 6 (2) + 6

OC = 18

Prin urmare, lungimea segmentului OC este de 18 cm

b) Această întrebare ne cere să găsim segmentul de linie MN.

Din diagramă, MN = AM - AN

Deoarece AM = 2n + 3 din întrebarea 1;

AM = 2 (2) +3

AM = 4 + 3

AM = 7

Acum, să obținem AN:

Din diagramă, AN = ON-OA și ON = OB / 2

AN = OB / 2 - OA

AN = (2n + 2n + 2) / 2 - 2n

AN = 4n + 2/2 - 2n

AN = 2n + 1 - 2n

AN = 2n-2n + 1

AN = 1

De la MN = AM - AN

MN = 7 - 1

MN = 6cm

Prin urmare, distanța dintre N, mijlocul segmentului OB și punctul M este de 6cm

6 0
3 years ago
Identify square root of 3 as either rational or irrational, and approximate to the tenths place.
dmitriy555 [2]

Answer:

It is an irrational number, \sqrt{3} as a decimal rounded to the tenth place is 1.7

Step-by-step explanation:

All square roots are irrational numbers

3 0
3 years ago
Read 2 more answers
Other questions:
  • The value of an investment decreased by 11 percent.The original amount of the investment was 7755.What is the current value of t
    12·1 answer
  • △XLW≅△XGD.<br><br> What is length of GD¯¯¯¯¯¯ ?
    14·2 answers
  • Use ABC, in which AB = 48, AC = 64, and BC = 80, to answer the question.
    5·1 answer
  • True or false? Causation statement The more you pay for a house makes you spend more for a car
    14·1 answer
  • An eccentric baseball card collector wants to distribute her collection among her descendants. If she divided her cards among he
    13·1 answer
  • Gina started with the circle (x−2)2+y2=16. She translated it 4 units left and 1 unit down. Then she reduced the radius by 1 unit
    12·1 answer
  • Jacob bought some bulbs for a total of $18. The cost of each bulb was $3. How many bulbs did Jacob buy?
    11·2 answers
  • A circle is represented by the equation below: (x + 8)2 + (y − 3)2 = 100 Which statement is true?
    5·1 answer
  • Can somebody help plz?
    7·1 answer
  • 1.3.4 Practice: Help to Design a Survey
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!